Datasheet > MAX7044

MAX7044

更新时间： 2023-12-20 18:45:56

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
10页	1476K
描述
300MHz至450MHz、高效率、基于晶振的+13dBm ASK发送器

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中文翻译

获取价格

数据手册

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MAX7044 数据手册

EVALUATION KIT AVAILABLE

MAX7044

300MHz to 450MHz High-Efficiency,

Crystal-Based +13dBm ASK Transmitter

General Description

Features

The MAX7044 crystal-referenced phase-locked-loop

(PLL) VHF/UHF transmitter is designed to transmit

OOK/ASK data in the 300MHz to 450MHz frequency

range. The MAX7044 supports data rates up to 100kbps,

and provides output power up to +13dBm into a 50Ω load

while only drawing 7.7mA at 2.7V.

● +2.1V to +3.6V Single-Supply Operation

● OOK/ASK Transmit Data Format

● Up to 100kbps Data Rate

● +13dBm Output Power into 50Ω Load

● Low 7.7mA (typ) Operating Supply Current*

● Uses Small, Low-Cost Crystal

The crystal-based architecture of the MAX7044 eliminates

many of the common problems with SAW-based transmitters

by providing greater modulation depth, faster frequency

settling, higher tolerance of the transmit frequency, and

reduced temperature dependence. The MAX7044 also

features a low supply voltage of +2.1V to +3.6V. These

improvements enable better overall receiver performance

when using the MAX7044 together with a superheterodyne

receiver such as the MAX1470 or MAX1473.

● Small 3mm x 3mm 8-Pin SOT23 Package

● Fast-On Oscillator: 250μs Startup Time

Applications

● Remote Keyless Entry (RKE)

● Tire-Pressure Monitoring (TPM)

● Security Systems

● Garage Door Openers

● RF Remote Controls

● Wireless Game Consoles

● Wireless Computer Peripherals

● Wireless Sensors

A simple, single-input data interface and a buffered

clock-out signal at 1/16th the crystal frequency make the

MAX7044 compatible with almost any microcontroller or

code-hopping generator.

The MAX7044 is available in an 8-pin SOT23 package

and is specified over the -40°C to +125°C automotive

temperature range.

Ordering Information

PIN-

PACKAGE

TOP

MARK

PART

TEMP RANGE

MAX7044AKA+T -40°C to +125°C

8 SOT23

AEJW

*At 50% duty cycle (315MHz, 2.7V supply, +13dBm output power).

+Denotes a lead(Pb)-free/RoHS-compliant package.

T = Tape and reel.

Typical Application Circuit

Pin Conﬁguration

TOP VIEW

XTAL

3.0V

XTAL2

XTAL1

GND

XTAL2

220pF

100nF

680pF

100nF

GND

MAX7044

SOT23

MAX7044

PAGND

PAOUT

DATA

DATA INPUT

ANTENNA

DATA

PAGND

PAOUT

CLOCK

CLKOUT

OUTPUT

CLKOUT

f /16)

XTAL

19-3221; Rev 5; 4/17

12 3 4 5 6 7...10

中文翻译

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与MAX7044相关器件

型号	品牌	获取价格	描述	数据表
MAX7044_09	MAXIM	获取价格	300MHz to 450MHz High-Efficiency, Crystal-Based +13dBm ASK Transmitter
MAX7044_1	MAXIM	获取价格	Evaluation Kit
MAX7044_11	MAXIM	获取价格	300MHz to 450MHz High-Efficiency, Crystal-Based +13dBm ASK Transmitter
MAX7044AKA	MAXIM	获取价格	300MHz to 450MHz High-Efficiency, Crystal-Based +13dBm ASK Transmitter
MAX7044AKA+T	MAXIM	获取价格	300MHz to 450MHz High-Efficiency, Crystal-Based +13dBm ASK Transmitter
MAX7044AKA-T	MAXIM	获取价格	300MHz to 450MHz High-Efficiency, Crystal-Based +13dBm ASK Transmitter
MAX7044EVKIT	MAXIM	获取价格	Single Input Voltage Supply from 2.1V to 3.6V
MAX7044EVKIT-315	MAXIM	获取价格	Evaluation Kit
MAX7044EVKIT-433	MAXIM	获取价格	Evaluation Kit
MAX7049	MAXIM	获取价格	High-Performance, 288MHz to 945MHz ASK/FSK ISM Transmitter

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